/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/Scene/SceneCapturePhotoSet.h
Add captures on the "view sphere", ie a sphere centered/sized such that the target actors will be fully contained inside a square image rendered from locations on the sphere, where the view direction is towards the sphere center. The Directions array defines the directions.
void AddExteriorCaptures ( [FImageDimensions](API\Runtime\GeometryCore\Image\FImageDimensions) PhotoDimensions, double HorizontalFOVDegrees, double NearPlaneDist, const [TArray](API\Runtime\Core\Containers\TArray)< FVector3d > & Directions )